Title :
Wavelets for image quality on LCD matrix display
Author :
Barbier, Bruno ; Favot, Jean-Jacques ; Perbet, Jean-noël ; Duval-Destin, Marc
Author_Institution :
SEXTANT, St.-Medard-en-Jalles, France
Abstract :
A novel method for image quality measurement on color matrix display using wavelet stimuli is described. Experimental results on contrast and brightness perception are given for a color LCD (liquid crystal display) matrix in the 1-8 cycles/degree range. The preliminary experiments show a frequency dependence of the contrast sensitivity curve similar to results with linear grating only at high spatial frequencies (>or=2 cycles/degree); results follow Weber\´s law at low frequencies (>
Keywords :
brightness; colour; liquid crystal displays; visual perception; LCD matrix display; Weber´s law; brightness perception; color matrix display; contrast sensitivity curve; frequency dependence; image quality measurement; isotropic stimulus; luminosity threshold; psychophysics; wavelet stimuli; Anisotropic magnetoresistance; Brightness; Convergence; Frequency; Image quality; Lighting; Liquid crystal displays; Psychology; Transfer functions; Wavelet analysis;
Conference_Titel :
Display Research Conference, 1991., Conference Record of the 1991 International
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-0213-3
DOI :
10.1109/DISPL.1991.167461
